Thoughts on BlackCoin's double deposit two party escrow?
http://www.reddit.com/r/Bitcoin/comments/2fil2x/does_openbazaar_plan_on_implementing_twoparty/ "For example, I want to sell you a bauble. You deposit your payment into a multi-sig address that requires both our consent to release the funds. I can verify that deposit before sending you the bauble.
In addition to that, we also agree to deposit a certain amount of funds into a second multi-sig address that requires both our consent, to be used as collateral against the trade.
If I don't satisfy the trade, you won't release me the funds. If I satisfy the trade and you still don't release the funds, then you risk losing those funds and your collateral. This is important, because it means we both have more to lose by scamming each other, than by completing an honest trade.
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